CN218467765U

CN218467765U - Pump body subassembly and towards tooth ware

Info

Publication number: CN218467765U
Application number: CN202222427172.XU
Authority: CN
Inventors: 卢刚; 张金泉; 黄道臣; 黄拔梓
Original assignee: Dongguan Lebond Electronic Technology Co Ltd
Current assignee: Dongguan Lebond Electronic Technology Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-02-10
Anticipated expiration: 2032-09-13

Abstract

The application provides a pump body assembly and a tooth washing device, and relates to the technical field of tooth washing devices, wherein the pump body assembly comprises a driving part and a pump body in transmission connection with the driving part, a cavity is formed in the pump body, and a water inlet, a water outlet and a backflow nozzle are arranged on the pump body; the water inlet is used for being communicated with a water tank, and water in the water tank enters the pump body through the water inlet; the water outlet is used for spraying water pressurized by the pump body; a backflow channel is arranged in the pump body, the backflow channel is communicated with the water tank through a backflow nozzle, and a check valve structure is arranged in the backflow nozzle; this pump body subassembly can reuse the water resource in using, also prevents that ponding from flowing out from the gap and damaging other spare parts.

Description

Pump body subassembly and towards tooth ware

Technical Field

The application relates to the technical field of tooth flushing devices, in particular to a pump body assembly and a tooth flushing device.

Background

The tooth flusher is an auxiliary tool for cleaning oral cavity, and generally utilizes a pump to pressurize water in a water tank carried by the tooth flusher, and the water forms a sprayed high-speed water column under a certain pressure so as to clean teeth and tooth gaps.

When a machine core pump body and a PCBA (printed circuit board assembly) plate of the existing tooth flushing device are placed in a machine shell, once the pump body is abraded or waterproof is not well done, water leakage can be generated, the PCBA plate in the machine shell is soaked in water, the machine is inevitably damaged by damage of the PCBA plate, parts such as a motor and a battery are also easily corroded and damaged by accumulated water, and water seeped into a pump shell from the inside is difficult to recycle, so that waste is caused; greatly influencing the experience of the user and simultaneously increasing the product maintenance cost of manufacturers.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the application provides a pump body assembly, the pump body assembly comprises a driving part and a pump body in transmission connection with the driving part, a cavity is formed in the pump body, and a water inlet, a water outlet and a backflow nozzle are arranged on the pump body;

the water inlet is used for being communicated with a water tank, and water in the water tank enters the pump body through the water inlet;

the water outlet is used for spraying water pressurized by the pump body;

the pump body is internally provided with a backflow channel, the backflow channel is communicated with the water tank through the backflow nozzle, and a check valve structure is arranged in the backflow nozzle.

In one possible embodiment, the return channel is linear and is parallel to the length of the pump body.

In a possible embodiment, the pump body includes a pump body upper cover and a pump body lower cover combined with each other, and the pump body upper cover is fastened on the pump body lower cover and fixed to enclose the cavity inside the pump body.

In a possible implementation manner, the pump body assembly further includes a sealing ring, and the sealing ring is pressed against the end faces of the upper pump body cover and the lower pump body cover which are matched with each other.

The application provides a towards tooth ware, including foretell pump body subassembly, still include:

a water tank;

a power source;

the control main board is electrically connected with the pump body assembly and the power supply;

the shell is internally provided with an accommodating space and is used for accommodating the pump body assembly, the water tank and the control main board;

the nozzle pipe is clamped in the machine shell, and one end of the nozzle pipe is communicated with the water outlet.

In a possible embodiment, the control board is disposed between an outer side wall of the pump body and an inner side wall of the casing.

In a possible implementation manner, a touch module is further disposed outside the casing, and the touch module is electrically connected to the control motherboard.

In one possible embodiment, the drive element is an electric motor. The pump body comprises a pump chamber and a piston arranged in the pump chamber, and the rear end of the piston is in transmission connection with a rotor part of the motor through a cam mechanism.

In one possible embodiment, the cam mechanism comprises:

the straight gear is sleeved on the rotor of the motor;

the face gear is meshed with the straight gear, and the rotating axis of the straight gear is perpendicular to the rotating axis of the face gear;

the revolution axis of the eccentric wheel is the rotation axis of the face gear; the eccentric wheel is hinged with a push rod taking the rotation axis of the eccentric wheel as a hinged rotation axis, and the tail end of the push rod is connected with the rear end of the piston.

In one possible embodiment, the housing includes an upper housing and a lower housing, and the upper housing and the lower housing are clamped with each other to form an accommodating space therein.

Compared with the prior art, the beneficial effects of the application are that: in the pump body assembly provided by the utility model, the driving piece drives the pump body to operate, the pump body operates to pump water in the water tank into the cavity, and the water is pressurized in the cavity and then is ejected out of the pump body through the water outlet; in addition, a part of water is retained in the cavity, and because the water tank generates negative pressure inside the water tank after being pumped, the water in the cavity flows back to the position of the backflow nozzle, accumulated water in the cavity is gathered in the backflow channel and is unidirectionally sucked into the water tank along the backflow channel through the backflow nozzle, so that water resources are reused, and the accumulated water is prevented from flowing out of a gap to damage a driving piece driving the pump body to operate; in the tooth washing device with the pump body assembly, water flow is sprayed out along the nozzle pipe after passing through the water outlet, and the control main board controls the pump body assembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIGS. 1 and 2 are schematic views showing the structure of various angles in the internal cavity of the pump body in the first embodiment;

FIG. 3 shows an exploded view of the pump body assembly in the first embodiment;

FIG. 4 is a schematic view showing the pump body assembly abutting the water tank in the first embodiment;

FIG. 5 shows a cross-sectional view of the interior of the pump body in a first embodiment;

FIG. 6 is a schematic view showing the structure of the pump body assembly and the water tank of the dental irrigator according to the second embodiment;

FIG. 7 is an exploded view of the dental irrigator of the second embodiment;

fig. 8 shows a structural schematic diagram of the tooth irrigator in the third embodiment.

Description of the main element symbols:

1-a motor;

2-a pump body; 21-pump body upper cover; 22-a pump body lower cover; 23-face gear; 24-a spur gear; 25-eccentric wheel; 26-a push rod; 27-a piston;

3-a water inlet; 4-water outlet; 5-a backflow nozzle; 6-a return channel; 7-sealing ring;

8-a machine shell; 81-an upper housing; 82-a lower housing;

9-a nozzle tube; 10-a water tank; 11-a power supply; 12-control the mainboard; 13-touch module.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1 to 4, in the present embodiment, the pump assembly includes a driving member and a pump body 2, the driving member is a motor 1 in the present embodiment, wherein the motor 1 is vertically disposed, and a housing of the motor 1 is a waterproof housing.

Referring to fig. 3, the pump body 2 includes an upper pump body cover 21 and a lower pump body cover 22 that are combined with each other, and the upper pump body cover 21 is fastened and fixed on the lower pump body cover 22 to form a cavity inside the pump body 2.

Wherein, set up a plurality of through-hole along the edge of pump body upper cover 21, be equipped with the screw of a plurality of and through-hole intercommunication corresponding through-hole quantity and position on the pump body lower cover 22, the screw rod of screw passes and the screw in from the through-hole, and screw head lower extreme terminal surface gland is on the up end of pump body upper cover 21 to it is fixed with pump body upper cover 21 and pump body lower cover 22 combination. Each through hole and each screw hole are correspondingly provided with a screw.

Referring to fig. 2, a piston 27 and a cam mechanism are further disposed in the pump body 2, and the cam mechanism includes a face gear 23, a spur gear 24, an eccentric wheel 25 and a push rod 26; one side of the chamber forms a pump chamber adapted to the piston 27, and the piston 27 is provided in the pump chamber to divide the chamber into a pump water chamber and a return water chamber.

A spur gear 24 is sleeved on the rotor of the motor 1; the face gear 23 is meshed with the straight gear 24, and the rotating axis of the straight gear 24 is vertical to the rotating axis of the face gear 23; the revolution axis of the eccentric wheel 25 is the rotation axis of the face gear 23; the eccentric wheel 25 is hinged with a push rod 26 taking the rotation axis of the eccentric wheel 25 as a hinged rotation axis, and the tail end of the push rod 26 is connected with the rear end of the piston 27.

When the rotor of the motor 1 rotates to drive the spur gear 24 to rotate, the spur gear 24 drives the face gear 23 to rotate around the central rotation axis of the face gear through the meshed tooth gaps, the rotation of the face gear 23 drives the eccentric wheel 25 to rotate around the revolution axis of the face gear, and the eccentric wheel 25 drives the piston 27 to do reciprocating motion in a linear stroke in the pump chamber through the push rod 26.

Referring to fig. 1 and 4, a water inlet 3, a water outlet 4 and a backflow nozzle 5 are arranged on the pump body 2; in this embodiment, a water tank 10 is butted below the pump body 2, wherein the water inlet 3 is used for communicating with the water tank 10, and water in the water tank 10 enters the pump body 2 through the water inlet 3; and the water outlet 4 is used for spraying the water pressurized by the pump body 2 to form a water column.

Fig. 5 is a cross-sectional view of the inside of the pump body 2 in the present embodiment, in which the butt joint directions of the water inlet 3 and the backflow nozzle 5 are both downward, and the butt joint direction of the water outlet 4 is upward; this is because the tank 10, which is in abutment with the inlet 3 and the return nozzle 5, is located below the pump body 2, while the nozzle tube 9, which is in abutment with the outlet 4, is located above the pump body 2. The water outlet 4 is subsequently connected to an elongated tube for butt-joint with the nozzle tube 9 above.

Have the return channel 6 of ponding in the accumulation cavity in the pump body 2, return channel 6 communicates with water tank 10 through backflow nozzle 5, be equipped with the check valve structure in the backflow nozzle 5, make ponding in the return channel 6 can only one-wayly be inhaled water tank 10 through backflow nozzle 5. The non-return valve in the return nozzle 5 is a duckbill valve.

Referring to fig. 1 again, in the present embodiment, the backflow channel 6 is linear, and the backflow channel 6 is parallel to the length direction of the pump body, so as to flow water along the backflow channel 6 to the water tank 10.

It should be noted that the water inlet 3 and the water outlet 4 are also provided with check valve structures, but the flow directions of the water flow cut off by the water inlet 3 and the water flow cut off by the water outlet 4 are different, the check valve arranged in the water inlet 3 enables the water to flow into the pump body 2 from the water tank 10 only in one direction, and the check valve arranged in the water outlet 4 enables the water in the pump body 2 to be ejected out of the pump body 2 only through the water outlet 4 in one direction.

The piston 27 is driven by the motor 1 to do reciprocating motion in a linear stroke in the pump chamber so as to pump water in the water tank 10 into the water pumping chamber; then the water in the pump water cavity is compressed by the piston 27 to be sprayed out from the water outlet 4; some water enters the backflow cavity through the gap between the piston 27 and the pump chamber, and because the water tank 10 generates negative pressure inside the water tank after being pumped, the water in the backflow cavity flows back to the position of the backflow nozzle 5, accumulated water in the backflow cavity is gathered in the backflow channel 6 and is sucked into the water tank 10 along the backflow channel 6 in a single direction through the backflow nozzle 5, so that water resources are reused, and the accumulated water is prevented from flowing out of the gap and damaging the motor 1 driving the pump body 2 to operate.

Referring to fig. 1 again, in this embodiment, the pump body assembly further includes a flexible sealing ring 7, and the sealing ring 7 is pressed against the end surface of the pump body upper cover 21 and the pump body lower cover 22.

On the terminal surface that pump body upper cover 21 and/or pump body lower cover 22 mutually supported, be equipped with the recess with sealing washer 7 looks adaptation, sealing washer 7 inlays and locates in the recess, separates cavity and the 2 exterior spaces of the pump body, and its purpose is oozed from the clearance department between pump body upper cover 21 and the pump body lower cover 22 in order to prevent ponding in the cavity.

Wherein the sealing ring 7 is made of rubber material.

Example two

Referring to fig. 6 and 7, in the present embodiment, a tooth rinsing device is provided, which includes the pump body assembly in embodiment 1, and further includes a housing 8, a nozzle pipe 9, a water tank 10, a power supply 11, and a control main board 12. Wherein, an accommodating space is formed in the machine shell 8 and accommodates the pump body assembly, the water tank 10, the nozzle pipe 9, the power supply 11 and the control mainboard 12;

the water tank 10 contains water for cleaning teeth;

the housing 8 includes an upper housing 81 and a lower housing 82, the upper housing 81 and the lower housing 82 are clamped to each other to form an accommodating space therein; wherein the pump body assembly, the power supply 11 and the control main board 12 are accommodated in the upper cabinet 81, and the water tank 10 is accommodated in the lower cabinet 82;

the nozzle pipe 9 is clamped in the machine shell 8, and one end of the nozzle pipe 9 is communicated with the water outlet 4. In this embodiment, the water outlet 4 is connected to one end of an extension water pipe, and the other end of the extension water pipe far away from the water outlet 4 is connected to the nozzle pipe 9.

The power supply 11 and the control mainboard 12 are both arranged between the outer side wall of the pump body 2 and the inner side wall of the casing 8; the power source 11 can be a lithium battery, the control main board 12 is electrically connected with the pump body assembly and the power source 11, and the power source 11 supplies power to the motor 1 in the pump body assembly.

Because the cavity is sealed, water in the water tank 10 completely passes through the cavity, and then the water is sprayed out from the nozzle pipe 9 or flows back into the water tank 10, so that the water cannot contact with the control main board 12 and the power supply 11, and the control main board 12 and the power supply 11 are prevented from being damaged due to water immersion.

The motor 1 drives the pump body 2 to operate, the pump body 2 operates to pump water in the water tank 10 into the cavity, most of the water is pressurized in the cavity and then is ejected out through the water outlet 4 and the nozzle pipe 9 to form a pulse water column so as to clean teeth and tooth gaps, and a small part of the water passes through the gaps and is reserved in the cavity.

Because the water tank 10 produces the negative pressure inside after being pumped to make the water that remains in the cavity under the suction effect, backward flow to backflow nozzle 5 position, ponding in the cavity is assembled to backflow channel 6 in, and follow backflow channel 6 and pass through backflow nozzle 5 unilaterally in the water tank 10, in order to recycle the water resource.

EXAMPLE III

In other possible embodiments, as shown in fig. 8, there is provided a tooth irrigator for generating a pulse water jet and cleaning teeth and interdental spaces, which is a further improvement on the technique of embodiment 2, and the difference between this embodiment and embodiment 2 is:

a touch module 13 is further disposed outside the housing 8, the touch module 13 is electrically connected to the control main board 12, and in this embodiment, the touch module 13 is a touch button.

The user presses the touch module 13 to control the tooth flusher, so as to control the switch of the tooth flusher, or control the water spraying power of the tooth flusher, for example, by applying different touch durations or/and touch frequencies to the input port of the touch module to control the switch state of the tooth flusher and the switching of the flushing gear. The technology for electrically connecting the touch module 13 and the control main board 12 is the prior art.

As a further preferable solution to this embodiment, the touch unit includes a first touch unit and a second touch unit.

The first touch unit and the second touch unit are respectively a first touch button and a second touch button exposed on the outer surface of the housing 8;

the first touch control button is a power on/off button, and the tooth flushing device capable of being turned on and off is pressed;

the second touch control button is a gear adjusting button, and when the tooth flushing device works, the water spraying power of the tooth flushing device can be switched by pressing the second touch control button.

In some other embodiments, the touch unit may also be an optical touch unit.

The specific arrangement is that a light sensor is arranged at the position of a first touch button and a second touch button, when a finger slightly touches the first touch button or the second touch button, the light sensor senses light change, so that a touch signal is transmitted, and on-off control of the tooth flushing device or switching control of a flushing gear is realized.

Example four

In other embodiments, a tooth irrigator is provided for cleaning teeth and crevices between teeth, which is a further improvement over the third embodiment, and the third embodiment is different from the third embodiment in that:

in this embodiment, an LED lamp is further disposed at the bottom of the housing 8 for indicating the working state of the tooth rinsing device, and the LED lamp is electrically connected to the control main board 12 and powered by the power supply 11. When the LED lamp is luminous, the water spray power of the tooth flushing device is different, so that the luminous effect of the bottom of the tooth flushing device is in different states, the gear positions of the tooth flushing device can be conveniently and visually known, and the tooth flushing device is more attractive.

EXAMPLE five

The embodiment provides a tooth irrigator for cleaning teeth and slits between teeth, which is a further improvement on the basis of the second embodiment, and compared with the second embodiment, the embodiment is characterized in that:

in this embodiment, an anti-slip structure is further disposed on the outer wall of the lower housing 82; the anti-slip structure can be anti-slip lines or anti-slip convex points.

EXAMPLE six

The embodiment provides a tooth rinsing device for cleaning teeth and tooth gaps, which is a further improvement on the second embodiment, compared with the second embodiment, the embodiment is characterized in that:

in this embodiment, still be provided with the mounting bracket in the casing 8, the pump body 2, motor 1, control mainboard 12 and water tank 10 all set up on the mounting bracket, set up the mounting bracket and can make the structure inside the tooth ware more compact.

EXAMPLE seven

In other embodiments, a tooth irrigator is provided for cleaning teeth and slits between teeth, and the present embodiment is a further improvement on the second embodiment, compared with the first embodiment, the embodiments are characterized in that:

the transmission between the driver and the rear end of the piston 27 is not a single cam mechanism but a compound transmission structure including a cam mechanism and a screw transmission structure.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A pump body assembly is characterized by comprising a driving part and a pump body in transmission connection with the driving part, wherein a cavity is formed in the pump body, and a water inlet, a water outlet and a backflow nozzle are formed in the pump body;

the water outlet is used for spraying the water pressurized by the pump body;

2. The pump body assembly of claim 1, wherein the return channel is linear and the return channel is parallel to a length of the pump body.

3. The pump body assembly of claim 1, wherein the pump body includes a pump body upper cover and a pump body lower cover that are assembled with each other, and the pump body upper cover is fastened to and fixed to the pump body lower cover to enclose the cavity inside the pump body.

4. The pump body assembly of claim 3, further comprising a seal ring, wherein the seal ring is pressed against the mating end surfaces of the pump body upper cover and the pump body lower cover.

5. A dental irrigator comprising the pump body assembly of any one of claims 1-4 and further comprising:

a water tank;

a power source;

the pump body assembly is arranged in the water tank, and the water tank is connected with the control mainboard through the water tank;

6. The dental irrigator of claim 5 wherein said control plate is disposed between an outer side wall of said pump body and an inner side wall of said housing.

7. The tooth flushing device of claim 5, wherein a touch module is further arranged outside the casing, and the touch module is electrically connected with the control main board.

8. The dental irrigator of claim 5 wherein the drive member is a motor, the pump body includes a pump chamber and a piston disposed in the pump chamber, a rear end of the piston being drivingly connected to a rotor portion of the motor by a cam mechanism.

9. The dental irrigator of claim 8, wherein said cam mechanism comprises:

the straight gear is sleeved on the rotor of the motor;

the face gear is meshed with the straight gear, and the rotating axis of the straight gear is vertical to that of the face gear;

10. The apparatus as claimed in claim 5, wherein the housing comprises an upper housing and a lower housing, and the upper housing and the lower housing are engaged with each other to form a receiving space therein.